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//! This example works on the following boards:
//! - IMXRT1010-EVK
//! - Adafruit Metro M7 (with microSD or with AirLift), requires an external button
//! - Makerdiary iMX RT1011 Nano Kit (TODO: currently untested, please change this)
//!
//! Although beware you will need to change the GPIO pins being used (scroll down).
#![no_std]
#![no_main]
use defmt::info;
use embassy_executor::Spawner;
use embassy_nxp::gpio::{Input, Level, Output, Pull};
// Must include `embassy_imxrt1011_examples` to ensure the FCB gets linked.
use {defmt_rtt as _, embassy_imxrt1011_examples as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) -> ! {
let p = embassy_nxp::init(Default::default());
info!("Hello world!");
/* Pick the pins to use depending on your board. */
// IMXRT1010-EVK
//
// LED (D25) and user button (SW4)
let (led, button) = (p.GPIO_11, p.GPIO_SD_05);
// Adafruit Metro M7 (both microSD and AirLift variants)
//
// The LED is connected to D13 on the board.
//
// In particular the Metro M7 has no board user buttons, so you will need to connect a button.
// Any other GPIO pin can be used. GPIO_04 is used for example since it is on pin D12.
// let (led, button) = (p.GPIO_03, p.GPIO_04);
// Makerdiary iMX RT1011 Nano Kit
//
// LED0 and user button.
// let (led, button) = (p.GPIO_SD_04, p.GPIO_SD_03);
let mut button = Input::new(button, Pull::Up100K);
let mut led = Output::new(led, Level::Low);
led.set_high();
loop {
button.wait_for_falling_edge().await;
info!("Toggled");
led.toggle();
// The RT1010EVK has a 100 nF debouncing capacitor which results in false positive events
// when listening for a falling edge in a loop, wait for the rising edge and then wait for
// stabilization.
button.wait_for_rising_edge().await;
// Stabilization.
for _ in 0..100_000 {
cortex_m::asm::nop();
}
}
}
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